Takigawa group Tajima lab. Mori lab. Hiroi Group Ueda lab. Yoshinobu lab. Lippmaa group Otani group Ishimoto group Kubota lab. Suemoto lab. Takahashi Group Akiyama group Shin lab. Shibayama lab. Yoshizawa lab.

Ueda lab. Home Page TEL: +81-(0)4-7136-3201, +81-(0)4-7136-3270 (Lab.) FAX: +81-(0)4-7136-3217, +81-(0)4-7136-3259 (Lab.) e-mail: ueda@issp.u-tokyo.ac.jp For understanding the fundamental properties of materials, such as magnetism and superconductivity, it is important to understand the effects of the electron-electron interactions. Actually, the strongly correlated electron systems like heavy fermion systems and high Tc superconductors are current important topics of condensed matter physics. In our laboratory, at present, we are concerned with the following subjects: Microscopic theory of heavy fermion systems Theory of high Tc superconductivity Quantum phase transitions in 2-dimensional spin systems Quantum critical phenomena in coupled spin and orbital systems